Shared Contacts?

What a great product. And especially the fact that it's available to someone like myself who just wants a nice looking webmail based interface for a home based mail server.

I was just logged in as myself and was trying to see if there is a way to share Contacts? In other words, if I setup my wife and myself on my mail server, is there a way that we can share a common set of contacts without using MS Outlook? If not, that would be a nice feature